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Preterm birth protein c

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https://www.readbyqxmd.com/read/28911210/a20-an-essential-component-of-the-ubiquitin-editing-protein-complex-is-a-negative-regulator-of-inflammation-in-human-myometrium-and-foetal-membranes
#1
Martha Lappas
STUDY QUESTION: Does A20 regulate mediators involved in the terminal processes of human labour in primary myometrial and amnion cells? SUMMARY ANSWER: A20 is a nuclear factor-kappa B (NF-κB) responsive gene that acts as a negative regulator of NF-κB-induced expression of pro-labour mediators. WHAT IS KNOWN ALREADY: Inflammation is commonly implicated in spontaneous preterm birth and the processes involved in rupture of foetal membranes and uterine contractions...
September 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28904937/effect-of-magnesium-supplement-on-pregnancy-outcomes-a-randomized-control-trial
#2
Elaheh Zarean, Amal Tarjan
BACKGROUND: Magnesium (Mg) is an essential mineral required to regulate body temperature, nucleic acid, and protein synthesis with an important role in maintaining nerve and muscle cell electrical potentials. It may reduce fetal growth restriction and preeclampsia as well as increase birth weight. This study aimed to assess the effects of consuming Mg supplementation during pregnancy on pregnancy outcomes. MATERIALS AND METHODS: This is a randomized controlled trial with three sixty populated groups of pregnant women...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28810692/resveratrol-protects-from-lipopolysaccharide-induced-inflammation-in-the-uterus-and-prevents-experimental-preterm-birth
#3
María Victoria Bariani, Fernando Correa, Emma Leishman, Ana Paula Domínguez Rubio, Andreína Arias, Aníbal Stern, Heather B Bradshaw, Ana María Franchi
STUDY QUESTION: Is resveratrol able to prevent the lipopolysaccharide (LPS)-induced preterm labor in 15-day pregnant BALB/c mice? SUMMARY ANSWER: Resveratrol prevented the LPS-induced onset of preterm labor in 64% of the cases and showed anti-inflammatory and tocolytic effects by downregulating COX-2 and iNOS expression and NOS activity, and by changing the uterine prostaglandin and endocannabinoid profiling. WHAT IS KNOWN ALREADY: Genital tract infections by Gram-negative bacteria are a common complication in human pregnancy and have been shown to increase risk of preterm delivery...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28754971/in-vivo-raman-spectral-analysis-of-impaired-cervical-remodeling-in-a-mouse-model-of-delayed-parturition
#4
Christine M O'Brien, Jennifer L Herington, Naoko Brown, Isaac J Pence, Bibhash C Paria, James C Slaughter, Jeff Reese, Anita Mahadevan-Jansen
Monitoring cervical structure and composition during pregnancy has high potential for prediction of preterm birth (PTB), a problem affecting 15 million newborns annually. We use in vivo Raman spectroscopy, a label-free, light-based method that provides a molecular fingerprint to non-invasively investigate normal and impaired cervical remodeling. Prostaglandins stimulate uterine contractions and are clinically used for cervical ripening during pregnancy. Deletion of cyclooxygenase-1 (Cox-1), an enzyme involved in production of these prostaglandins, results in delayed parturition in mice...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28731129/expression-profile-of-c19mc-micrornas-in-placental-tissue-of-patients-with-preterm-prelabor-rupture-of-membranes-and-spontaneous-preterm-birth
#5
Ilona Hromadnikova, Katerina Kotlabova, Katarina Ivankova, Ladislav Krofta
The aim of the study was to demonstrate that preterm birth (PTB) is associated with altered C19MC microRNA expression profile in placental tissues. Gene expression of 15 placental specific microRNAs (miR‑512‑5p, miR‑515‑5p, miR‑516‑5p, miR‑517‑5p, miR‑518b, miR‑518f‑5p, miR‑519a, miR‑519d, miR‑519e‑5p, miR‑520a‑5p, miR‑520h, miR‑524‑5p, miR‑525‑5p, miR‑526a and miR‑526b‑5p) was compared between groups: 34 spontaneous PTB, 108 preterm prelabor rupture of membranes (PPROM) and 20 term in labor pregnancies...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28720162/maternal-pregnancy-c-reactive-protein-predicts-offspring-birth-size-and-body-composition-in-metropolitan-cebu-philippines
#6
C W Kuzawa, R L Fried, J B Borja, T W McDade
The gestational milieu is an important influence on fetal development and long-term disease risk. Here we assess relationships between maternal pregnancy inflammation, indicated by C-reactive protein (CRP), and offspring anthropometric outcomes measured soon after birth. Data come from female participants (n=327, age 24.4-30.2 years) in a longitudinal study located in Metropolitan Cebu, Philippines. Between 2009 and 2014, pregnancy interviews (n=429) were conducted during which questionnaire and anthropometric data were obtained along with dried blood spot cards for CRP measurement...
July 19, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28719503/central-peripheral-temperature-monitoring-as-a-marker-for-diagnosing-late-onset-neonatal-sepsis
#7
José Luis Leante-Castellanos, Antonio Martínez-Gimeno, Manuel Cidrás-Pidré, Gerardo Martínez-Munar, Ana García-González, Carmen Fuentes-Gutiérrez
BACKGROUND: The prognosis for late-onset sepsis depends largely on a timely diagnosis. We assess central-peripheral temperature difference monitoring as a marker for late-onset neonatal sepsis diagnosis. METHODS: We performed a prospective, observational study focusing on a cohort of 129 very low birth weight infants. Thermal gradient alteration was defined as a difference of > 2°C maintained during 4 hours. We then determined its association with the late-onset sepsis variable through logistic regression...
July 13, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28701259/markers-of-protein-synthesis-are-increased-in-fetal-membranes-and-myometrium-after-human-labour-and-delivery
#8
Stella Liong, Martha Lappas
Preterm birth remains one of the leading causes of neonatal death. Inflammation and maternal infection are two of the leading aetiological factors for preterm birth. Labour is associated with increased production of proinflammatory cytokines, chemokines and prolabour mediators in human gestational tissues. In non-gestational tissues, synthesis of proinflammatory and prolabour mediators is regulated by components of the protein synthesis machinery. Therefore, in the present study we investigated the effect of human labour on the expression of three protein synthesis markers, namely eukaryotic elongation factor 2 kinase (EEF2K), mitogen-activated protein kinase interacting protein kinase 1 (MKNK1) and eukaryotic translation initiation factor 4E (EIF4E), and their role in regulating inflammation in human gestational tissues...
July 13, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28700733/non-invasive-prediction-of-preterm-birth-in-women-with-cervical-insufficiency-or-an-asymptomatic-short-cervix-%C3%A2-25-mm-by-measurement-of-biomarkers-in-the-cervicovaginal-fluid
#9
Ha-Na Yoo, Kyo Hoon Park, Eun Young Jung, Yu Mi Kim, Song Yi Kook, Se Jeong Jeon
OBJECTIVE: To determine whether various proteins in the cervicovaginal fluid (CVF) known to be involved in immune regulation, alone or in combination with clinical risk factors, can predict spontaneous preterm delivery (SPTD) in women with cervical insufficiency or a short cervix (≤25 mm). METHODS: This retrospective cohort study included 62 asymptomatic women with cervical insufficiency (n = 27) or an asymptomatic short cervix (n = 35) at 18-27 weeks. CVF swab samples were taken for assays of vitamin D binding protein (VDBP), interleukin (IL)-8, matrix metalloproteinases (MMP)-9, tissue inhibitor of metalloproteinases (TIMP)-1, and Dickkopf-related protein 3 (DKK3) before cervical examination, and maternal blood was collected for the determination of the C-reactive protein (CRP) level...
2017: PloS One
https://www.readbyqxmd.com/read/28622483/human-milk-fortifiers-do-not-meet-the-current-recommendation-for-nutrients-in-very-low-birth-weight-infants
#10
Winston Koo, Hilary Tice
BACKGROUND: Use of multinutrient fortifiers is standard of care for small preterm infants fed exclusively human milk. However, adequacy of human milk fortifiers (HMFs) to meet the recommended intake for macronutrients and micronutrients is now known. MATERIALS AND METHODS: Nutrient content of human milk fortified according to manufacturer's recommendations was compared at isocaloric levels for 1 human milk-based (HMF-A), 2 bovine milk protein-based (HMF-B, HMF-C), and 2 preterm infant formulas (PTF-B, PTF-C)...
June 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28606451/peak-serum-estradiol-level-during-controlled-ovarian-stimulation-is-not-associated-with-lower-levels-of-pregnancy-associated-plasma-protein-a-or-small-for-gestational-age-infants-a-cohort-study
#11
Caitlin Dunne, Kristy Cho, Angel Shan, Jennifer Hutcheon, Ursula Smith Durland, Ken Seethram, Jon C Havelock
OBJECTIVE: During controlled ovarian stimulation in IVF, supraphysiologic levels of estradiol (E2) have been associated with poor placentation and adverse pregnancy outcomes. This study aimed to investigate whether high peak E2 on the day of human chorionic gonadotropin trigger is associated with low pregnancy-associated plasma protein-A (PAPP-A) and adverse perinatal outcomes. METHODS: We performed a retrospective cohort study at a private, university-affiliated fertility centre in Vancouver, BC...
June 9, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28559440/bitter-taste-receptors-as-targets-for-tocolytics-in-preterm-labor-therapy
#12
Kaizhi Zheng, Ping Lu, Ellen Delpapa, Karl Bellve, Ruitang Deng, Jennifer C Condon, Kevin Fogarty, Lawrence M Lifshitz, Tiffany A Moore Simas, Fangxiong Shi, Ronghua ZhuGe
Preterm birth (PTB) is the leading cause of neonatal mortality and morbidity, with few prevention and treatment options. Uterine contraction is a central feature of PTB, so gaining new insights into the mechanisms of this contraction and consequently identifying novel targets for tocolytics are essential for more successful management of PTB. Here we report that myometrial cells from human and mouse express bitter taste receptors (TAS2Rs) and their canonical signaling components (i.e., G-protein gustducin and phospholipase C β2)...
May 30, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28493900/genomic-biomarkers-of-prenatal-intrauterine-inflammation-in-umbilical-cord-tissue-predict-later-life-neurological-outcomes
#13
Sloane K Tilley, Robert M Joseph, Karl C K Kuban, Olaf U Dammann, T Michael O'Shea, Rebecca C Fry
BACKGROUND: Preterm birth is a major risk factor for neurodevelopmental delays and disorders. This study aimed to identify genomic biomarkers of intrauterine inflammation in umbilical cord tissue in preterm neonates that predict cognitive impairment at 10 years of age. STUDY DESIGN: Genome-wide messenger RNA (mRNA) levels from umbilical cord tissue were obtained from 43 neonates born before 28 weeks of gestation. Genes that were differentially expressed across four indicators of intrauterine inflammation were identified and their functions examined...
2017: PloS One
https://www.readbyqxmd.com/read/28466996/hepatitis-a-virus-cellular-receptor-2-havcr2-is-decreased-with-viral-infection-and-regulates-pro-labour-mediators-oa
#14
Stella Liong, Ratana Lim, Gillian Barker, Martha Lappas
PROBLEM: Intrauterine infection caused by viral infection has been implicated to contribute to preterm birth. Hepatitis A virus cellular receptor 2 (HAVCR2) regulates inflammation in non-gestational tissues in response to viral infection. METHOD OF STUDY: The aims of this study were to determine the effect of: (i) viral dsRNA analogue polyinosinic:polycytidylic acid (poly(I:C)) on HAVCR2 expression; and (ii) HAVCR2 silencing by siRNA (siHAVCR2) in primary amnion and myometrial cells on poly(I:C)-induced inflammation...
May 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28465315/a-first-in-human-clinical-study-of-a-new-sp-b-and-sp-c-enriched-synthetic-surfactant-chf5633-in-preterm-babies-with-respiratory-distress-syndrome
#15
David G Sweet, Mark A Turner, Zbyněk Straňák, Richard Plavka, Paul Clarke, Ben J Stenson, Dominique Singer, Rangmar Goelz, Laura Fabbri, Guido Varoli, Annalisa Piccinno, Debora Santoro, Christian P Speer
OBJECTIVE: CHF5633 (Chiesi Farmaceutici S.p.A., Parma, Italy) is the first fully synthetic surfactant enriched by peptide analogues of two human surfactant proteins. We planned to assess safety and tolerability of CHF5633 and explore preliminary efficacy. DESIGN: Multicentre cohort study. PATIENTS: Forty infants from 27(+0) to 33(+6) weeks gestation with respiratory distress syndrome requiring fraction of inspired oxygen (FiO2) ≥0.35 were treated with a single dose of CHF5633 within 48 hours after birth...
May 2, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28444285/preeclampsia-screening-evidence-report-and-systematic-review-for-the-us-preventive-services-task-force
#16
REVIEW
Jillian T Henderson, Jamie H Thompson, Brittany U Burda, Amy Cantor
Importance: Preeclampsia is a complex disease of pregnancy with sometimes serious effects on maternal and infant morbidity and mortality. It is defined by hypertension after 20 weeks' gestation and proteinuria or other evidence of multisystem involvement. Objective: To systematically review the benefits and harms of preeclampsia screening and risk assessment for the US Preventive Services Task Force. Data Sources: MEDLINE, PubMed, and Cochrane Central Register of Controlled Trials databases from 1990 through September 1, 2015...
April 25, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28427089/editor-s-highlight-exposure-to-crvi-during-early-pregnancy-increases-oxidative-stress-and-disrupts-the-expression-of-antioxidant-proteins-in-placental-compartments
#17
Sakhila K Banu, Jone A Stanley, Kirthiram K Sivakumar, Robert J Taylor, Joe A Arosh, Robert C Burghardt
Epidemiologic studies document relationships between chromium VI (CrVI) exposure and increased risk of spontaneous abortion, stillbirth, preterm birth, and neonatal death in pregnant women. Environmental contamination with CrVI is a growing problem both in the United States and developing countries. CrVI is widely used in numerous industries. This study was designed to understand the mechanism of CrVI toxicity on placental oxidative stress and antioxidant (AOX) machinery. Pregnant mother rats were treated with or without CrVI (50 ppm K2Cr2O7) through drinking water from gestational day (GD) 9...
February 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28424255/analysis-of-milk-from-mothers-who-delivered-prematurely-reveals-few-changes-in-proteases-and-protease-inhibitors-across-gestational-age-at-birth-and-infant-postnatal-age
#18
Veronique Demers-Mathieu, Søren Drud Nielsen, Mark A Underwood, Robyn Borghese, David C Dallas
Background: Peptidomics research has demonstrated that protease activity is higher in breast milk from preterm-delivering mothers than from term-delivering mothers. However, to our knowledge, the effect of the degree of prematurity and postnatal age on proteases and protease inhibitors in human milk remains unknown.Objective: We aimed to determine the change of proteases and protease inhibitors in milk from mothers who delivered prematurely across gestational age (GA) and postnatal age.Methods: Milk samples were collected from 18 mothers aged 26-40 y who delivered preterm infants and who lacked mastitis...
June 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28422941/metabolism-related-micrornas-in-maternal-breast-milk-are-influenced-by-premature-delivery
#19
Molly C Carney, Andrij Tarasiuk, Susan L DiAngelo, Patricia Silveyra, Abigail Podany, Leann L Birch, Ian M Paul, Shannon Kelleher, Steven D Hicks
BackgroundMaternal breast milk (MBM) is enriched in microRNAs, factors that regulate protein translation throughout the human body. MBM from mothers of term and preterm infants differs in nutrient, hormone, and bioactive-factor composition, but the microRNA differences between these groups have not been compared. We hypothesized that gestational age at delivery influences microRNA in MBM, particularly microRNAs involved in immunologic and metabolic regulation.MethodsMBM from mothers of premature infants (pMBM) obtained 3-4 weeks post delivery was compared with MBM from mothers of term infants obtained at birth (tColostrum) and 3-4 weeks post delivery (tMBM)...
August 2017: Pediatric Research
https://www.readbyqxmd.com/read/28402971/implicating-receptor-activator-of-nf-%C3%AE%C2%BAb-rank-rank-ligand-signalling-in-microglial-responses-to-toll-like-receptor-stimuli
#20
Anton Kichev, Pascale Eede, Pierre Gressens, Claire Thornton, Henrik Hagberg
Inflammation in the perinatal brain caused by maternal or intrauterine fetal infection is now well established as an important contributor to the development of perinatal brain injury. Exposure to inflammatory products can impair perinatal brain development and act as a risk factor for neurological dysfunction, cognitive disorders, cerebral palsy, or preterm birth. Pre-exposure to inflammation significantly exacerbates brain injury caused by hypoxic/ischaemic insult. Tumour necrosis factor (TNF) is a family of cytokines largely involved in inflammation signalling...
2017: Developmental Neuroscience
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